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For which value will (5x+9y=45) and (10x+18y=k) be distinct parallel lines?किस मान पर (5x+9y=45) और (10x+18y=k) की रेखाएं समांतर अलग-अलग होंगी?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (k=88)(k=88)
The coefficient ratio is (\frac{1}{2}), so coincidence needs (k=90). For (k=88), the lines are distinct and parallel.गुणांक का अनुपात (\frac{1}{2}) है, इसलिए संपाती होने के लिए (k=90) चाहिए। (k=88) पर रेखाएं समांतर अलग-अलग हैं।
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